Alamagan, Volcanic island in Northern Mariana Islands, United States
Alamagan is a volcanic island in the Northern Mariana Islands with a length of about 5 kilometers and a maximum width of about 4 kilometers. The landscape is dominated by Bandeera Peak, whose summit rises about 744 meters above the sea.
The island was discovered in 1669 by Spanish missionary Diego Luis de San Vitores, who named it Concepción. Around 1695 the native Chamorro population was forcibly relocated to Saipan by Spanish colonial authorities.
Archaeological finds such as latte stones and ceramics scattered across the island show that early Chamorro communities lived here. These remains reveal how the original people built their homes and organized their settlements.
Access to the island is mainly by boat from neighboring islands. It is advisable to contact the Northern Islands Mayor's office in advance to arrange your visit.
The island is home to the only known specimens of Leptecophylla mariannensis, a plant discovered by Japanese botanist Ryōzō Kanehira. This rare species exists nowhere else in the world.
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